Checking against guest features is wrong. We allocated data structures
based on host features. We can rely on "free_page_bh" as an indicator
whether to un-do stuff instead.
Fixes: c13c4153f76d ("virtio-balloon: VIRTIO_BALLOON_F_FREE_PAGE_HINT")
Cc: Wei Wang <address@hidden>
Cc: Michael S. Tsirkin <address@hidden>
Cc: Philippe Mathieu-Daudé <address@hidden>
Cc: Alexander Duyck <address@hidden>
Signed-off-by: David Hildenbrand <address@hidden>
---
hw/virtio/virtio-balloon.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/virtio/virtio-balloon.c b/hw/virtio/virtio-balloon.c
index dc3b1067ab..a4fcf2d777 100644
--- a/hw/virtio/virtio-balloon.c
+++ b/hw/virtio/virtio-balloon.c
@@ -818,7 +818,7 @@ static void virtio_balloon_device_unrealize(DeviceState
*dev)
VirtIODevice *vdev = VIRTIO_DEVICE(dev);
VirtIOBalloon *s = VIRTIO_BALLOON(dev);
- if (virtio_balloon_free_page_support(s)) {
+ if (s->free_page_bh) {
qemu_bh_delete(s->free_page_bh);
virtio_balloon_free_page_stop(s);
precopy_remove_notifier(&s->free_page_report_notify);